Countable Nouns Starting with M and Containing RO

Explore 526 verified English countable nouns starting with M and containing RO, including Mirror, Microphone, Mushroom, Metro, Macro, Metropolitan and Micro. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

Refine list...
JUMP:
Sort:

Group:

Case:

View:

JUMP TO:
Select any word to view available definitions & photosSelect any word for details
macro
maroon
marrow
matron
maestro
macaroni
mangrove
macaron
maelstrom
mailroom
macaroon
macroeconomy
macronutrient
macrophage
macromolecule
maduro
masterstroke
macron
marrowbone
macrocosm
macrobiotic
malapropism
macroscale
magnetron
metro
metropolitan
metropolis
meteorologist
metronome
meteoroid
metrosexual
megaproject
metroplex
megadrought
metropole
meronym
metrologist
merozoite
metronymic
mellotron
meprobamate
megaron
meteorograph
metropolitanism
meronymy
metanephros
metrorrhagia
mesenteron
mirror
microphone
micro
microscope
microwave
microprocessor
microchip
microbe
microorganism
microbiome
microplastic
microfiber
microbiology
microcosm
microfilm
micron
misappropriation
microgram
microaggression
microbiota
microcontroller
misanthrope
minestrone
micrometer
morocco
moron
monstrosity
monochrome
motocross
morrow
moonroof
moonrock
monobrow
montero
motoneuron
morosity
monochromator
monopropellant
motocrosser
morro
monocrop
mokoro
monoceros
mouthbrooder
monochromat
monochromy
monohydrogen
monrovian
mushroom
mudroom
multiprocessor
multirotor
mushroomer
mudrock
multigroup
multielectrode
mucoprotein
muserole
mucro
murrough
muskroot
multimicrocomputer
mucronation
mycoprotein
myrobalan
myxofibrosarcoma
mycoheterotroph
myxochondrosarcoma

•Browse Countable Nouns by Letter (A to Z)

Select a starting letter to browse countable nouns
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.